Combined ruler square and miter square



Inventor May 20, 1930. r. J. cHlLnREss I COMBINED RULER SQUARE AND MITER SQUARE Filed Nov. 25, 1927 T (izirg'ex i Attorney Patented May 20,1930 l UNITED STATES THoMAsJ. cHrLDREss, or wAYNnsBoRo, VIRGINIA v n COMBINED RULER SQUAR ANI) MITER ASQLQTJ'AlIE Application filed November 23, 1927. Serial No. 235,239.

The present invention relates to carpenters rules of the folding type and has for an object` to provide a pair of arms pivotally mounted at one end for swinging movement at opposite sides of the rules whereby to combine therewith to form a square and a miter square at opposite sides of therule. l

Y A furtherv object of theV invention is to provide adj ustable means for the arm mount-V lo ed on vthe rule for securing the respective arms in various adjusted positions.

A still further'fobject is yto provide an article of this character of simple and practical construction, which may be lincorporated in the constructionl of the rule without inter- Figure 1 is aview in elevation of one side v of thev rule shown in folded position, the arm constituting the miter square .being shown in cooperating position with respect thereto and a fragment of the opposite arm constituting l3@ the square beingshown in dotted lines in its cooperatingposition at the opposite side of the rule. l 1

Figure 2 is an edge elevationall view and Figure Sis an vend view thereof. y l Referring now to the drawing indetail, my invention contemplates the use'fof a carpenters rule indicated at 5 vof the. folding type, having its outer edges 6, when in folded position provided with a longitudinally eX- tending groove, the area of which is indi-y cated by the dotted line 7 in Figure 1 of the drawing, the upper ends of each groove having a pivot pin S'extending transversely therethrough providing a mounting for one end of a swinging arm 9 The arm 9 disposed at the opposite edges I of the rule are adapted normally to seat within the groove 7 in substantially enclosed relation therewithin. The notch 10 is formed 59 at each edge of the rule exposing. a portion of the outer edgeV of the armr for lingerk gripping so as toenable the arm to be withdrawn fromtheir seated position within the recess. Arecess or aperture 11 may be formed in the l arm adjacent the outer edge thereof within A which a pointed instrument or the linger nail of the user may be inserted to enable the arm'to be firmly gripped when desired for moving the same outwardly with respect to the ruler. n 'j 60 Adjacent the pivoted end of each ofthe arms is 'an adjusting plate 12 having a tongue 13 formed at. one side thereof fitted vwithin a shallow groove 14 formed in the edge of the rule permitting the plate to slide longitudi* 65 nallyy therein. A slottedV opening 15` is. formed in the plate through which an ad j usting screw 16 may be introduced whereby to secure the vplate inY adjusted position with respect to ther rule 5. y f f' 70 f The end of each of the plates 12 are adapted' to form vanl abutment for the outer edge of the adjacent arm 9, in a manner as clearly illustrated in Figure l of the drawing, the

plate 'disposed at the side of the ruler ad- 75.

jacent the arm 17 shown in dotted lines form# ing the limitation for the outward movement thereof whereby to enable said arm to cooperate with the rule in forming a square, whereas the abutting end of the opposite plate adapted for engagement with the edge of the oppositer arm 9 is beveled inwardly as shown at 18 so as to forman abutment at the outer edge ofsaid arm when disposed in outwardly inclined position enabling thesame lto cooperate with the rule for constituting a miter square. lt is apparent that the angle aty Which'thefarm 9 may 'be disposed with respect to the rule may be quickly adjusted by sliding the coacting plate 12 upwardly or downwardly corresponding with the extent Y towhich the arm 9 is desired to be moved. y

yThe outer edge of each of the arms 9 and 17 may be provided with a scale 19 to form a measurement for the work with respect to which the arms are used.l The scale also continues along the edges of the arm adjacent the plate 12 and the plates likewise are pro? vided with similar scale markings 20 whereby to cooperate with the scale of the arm to i plate, v I

A j It is obvious that the invention lssuscep- Y y tibleof various changes and modifications,V Y

indicate al predetermined adjustment of l K5 Without departing from'the spirit or scope ofthe kinventionor sacrificing any ofits adil 1.vantages,vand I aceordingly'elaimall suchl Y' formsjof thefdevice towhieh I am'entitled. Having thus Ydescribed my invention, what Y Y 1Y0 I claim as new is:

V-1. In combination, a'folding'rule having longitudinally extendingrece'sses formed in its opposite edges .when in folded position, arms pivotally'V mounted atoneend Within 1'5 said'reoes'ses With their opposite ends adapted foroutward swinging movement with respeotlto therule, and stopy means adj ust-ably earriedby the r'ule'and engageable by the armev for regulating the extentof outward 20 movementlof said arm, said stop means and [the vadjacent edges ofthe lrule each having portionsoi' thescale marked thereon and Cooperating toY indicate a predetermined adjustmentofthe stop means. i

-V 2.111 combination, a folding nuiehaving f longitudinally"extending recessesv formedv in er Y its outer edges when in folded position', arms Y y pivotallymountedat one endvin said recesses andv adapted for outward swinging movement Wthrespeet to the rule and aV pairof `4adjustahly mounted stop plates carried by -the"ruIe and en'gageable bythe respective arms for oontrollingfthe `extenty of outward Vmovement of said arms, said stop plates'and 35 the'adjacent edges ofthe ruleeaoh having portions of a scale vformed thereon and oooperating to indicate a predetermined 'adjust- V A ment of the stop plate. f f

In testimony whereof I a-HX ymy signature. y f

di y THOMAS J."ornLDRnss.j 

